In addition, the following information must beconspicuously posted on one door in each magazine orbuilding that contains ammunition:1.Thehazardclassificationofammunition(explosion, fire, or fragment) stored there.2.The maximum quantities of ammunition ineach hazard classification as determined fromthe explosive safety quantity-distance tables.3.Safety precautions and regulations that pertainto the specific material presently stored in themagazine or building.Post this information at each outside (open)ammunition storage site. Print the information on a cardso it is protected from the weather. Then, put the card ina locally manufactured ammunition site sign andcardholder, as shown in figure 12-3.Advanced base magazines are built in the mostsuitable location for storing one of the three hazardclassificationsexplosion, fire, or fragment. Since alladvanced base magazines are of the same type ofconstruction, all three-hazard classifications may bestored in them if they are within ESQD limitations.However, the group construction symbol designates thetype of storage for which the magazine is most suitable.Don't change this symbol to show the magazine'spresent or new use, unless the change is permanent.DISPURSION OF AMMUNITIONAmmunition disbursement is a main considerationin laying out an ammunition storage area at anadvanced base. Each type of ammunition is stored intwo widely separated areas. This prevents losing anentire supply of an ammunition item if there is a fire orexplosion. Explosive stores are separated from otherstores, as specified in the ESQD tables.Group piles of ammunition stored in the open bycategories. These groups are discussed in the followingparagraphs. These groupings aren't compatibilitygroups; they are only used to ensure safe distances aremaintained between piles and stacks of ammunition.CATEGORY A. This category of materialpresents a fire hazard. It includes propelling charges,bag charges, rocket motors, pyrotechnics, and smallarms ammunition. Category A material should beseparated from materials in the other categories (Bthrough E) by at least 350 feet.CATEGORY B. This category of materialpresents fire and fragment or fragment and explosionhazards. It includes fixed ammunition, separate-loading projectiles, complete rockets (assembled orunassembled), grenades, and mortars. Category Bmaterial should be separated from materials in the othercategories by at least 300 feet.12-16Figure 12-3.Ammunition site sign and card holder.